how to insert a miniature ships into bottles

 For those of you who never saw a miniature ship in a bottle, may be confused about how the ship could enter into the bottle.
maybe some of you think that the bottom or top of the bottle cut first. But it was not like that.
The secret is a hull that is small enough to fit through the neck, while the screen and spars (mast and supporting screen) can be folded and pulled into position using a thread. 

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